Without upper houses
| No Upper House |
|---|
| Bangladesh |
| Denmark |
| Djibouti |
| Dominica |
| Egypt |
| Estonia |
| Fiji |
| Finland |
| Guyana |
| Iraq |
| Iceland |
| Israel |
| Kiribati |
| Malawi |
| Malta |
| Nauru |
| Norway |
| New Zealand |
| Papua New Guinea |
| Saint Kitts and Nevis |
| St. Vincent and the Grenadines |
| Solomon Islands |
| Samoa |
| Singapore |
| Sweden |
| Tanzania |
| East Timor |
| Tonga |
| Tuvalu |
| Vanuatu |
| Zambia |
| 1 to 40 (32) |